Cozy black knit boots with stylish button accents. Perfect for casual wear. The boots in the image are UGG Classic Cardy boots, and the "8" likely refers to a US women's shoe size 8. About UGG Classic Cardy Boots: Design: These boots feature a chunky sweater knit upper made from a wool blend, designed to be convertible and worn in multiple ways: pulled up, slouched down, or folded over. Features: They are distinguished by three large buttons on the shaft, and when folded over, three smaller buttons become visible on the cuff. They typically include a plush wool insole and a lightweight sole for cushioning and traction. Material: The upper is a wool-blend knit, and the heel and footbed are often lined with genuine shearling or UGGpure wool for warmth and comfort. Sizing: The "8" in your query refers to a US women's shoe size 8, indicating the fit of the boots.